445622404 has 12 divisors (see below), whose sum is σ = 781023628. Its totient is φ = 222472800.

The previous prime is 445622389. The next prime is 445622449. The reversal of 445622404 is 404226544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 409981504 + 35640900 = 20248^2 + 5970^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81627 + ... + 86914.

Almost surely, 2^445622404 is an apocalyptic number.

It is an amenable number.

445622404 is a deficient number, since it is larger than the sum of its proper divisors (335401224).

445622404 is a wasteful number, since it uses less digits than its factorization.

445622404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169206 (or 169204 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 445622404 is about 21109.7703445585. The cubic root of 445622404 is about 763.8164471374.

Adding to 445622404 its reverse (404226544), we get a palindrome (849848948).

The spelling of 445622404 in words is "four hundred forty-five million, six hundred twenty-two thousand, four hundred four".